For the tenth labour Euristheus ordered to Heracles to steal the beats of Gerione, an ogre with three eyes and six arms that lived in Oceanus. During the voyage, Heracles stopped by the Straits of Gilbratar where two stone columns were erected to indicate the end of the known world. He stole the herds and killed Gerione. Returning with the animals, Heracles had many adventures, but in the end succeeded in reporting all the animals to Euristheus. Seeing as Euristheus did not count two labours as being valid, Heracles had to do another two.
